If a plain-Jane fitness tracker seems like too uninspired of a gift, we have some other ideas. You could buy any number of smartwatches that fared well in our tests. Engadgets resident runners also say Garmin Forerunner watches are a good bet for athletes (the Forerunner 935 is the top-of-the-line model, though the 235 is just fine, too). We also recommend Under Armours standalone heart rate monitor and Adidass slick-looking shoes made from 3D-printed ocean plastic. And while you d……Read more